Security dealers: are limited to trading non-listed stocks. buy and sell from their own inventory. operate exclusively in auction markets. operate on a physical trading floor. match buyers with sellers.

The answer is B. buy and sell from their own inventory

Explanation:

A dealer is someone who buys and sells from its own account or inventory.

A dealer is a seller to an investor that wants to buy securities and he is also a buyer to an investor that wants to sell his securities.

A broker is different from a dealer in that it transacts(sells or buys securities) on behalf of his or her clients.

bd = 9 cm

step-by-step explanation:

in a 30°-60°-90° triangle, the ratio of side lengths is 1 : √3 : 2. that is, the longest side (hypotenuse) is twice the length of the shortest side.

all of the triangles in your geometry are 30°-60°-90° triangles. ac is the hypotenuse of δacd, and the short side of δabc.

the short side ad of δacd will be half the length of ac, so 3 cm. the hypotenuse ab of δabc will be twice the length of ac, so 12 cm. segment bd is the difference of the lengths ab and ad, so is

bd = ab -ad

bd = 12 cm - 3 cm = 9 cm

comment on side length ratios

you can figure the ratios of side lengths in a 30°-60°-90° triangle by considering the trig ratios of the angles. or you can figure the length of the altitude of an equilateral triangle of side length 2 using the pythagorean theorem.

oh my god you are going so many marks marks i don't want to give you answers sorry